{"coeffs": [-6.261520422129576e-07, 1.9425183405363506e-05, 0.6824007748794382, 0.11797092373126239], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.839078319571414e-07, 9.95516646420662e-07, 0.01208680692823414, 0.007506665822953095], "covariance": [[3.382209065517616e-14, -1.2475729138223843e-13, -1.2148029787005624e-09, -1.161073831077774e-09], [-1.247572913822386e-13, 9.910533933006414e-13, 1.1742368302834124e-08, 6.916331509910823e-09], [-1.2148029787005644e-09, 1.1742368302834126e-08, 0.0001460909017204088, 7.853831969149768e-05], [-1.1610738310777755e-09, 6.916331509910821e-09, 7.853831969149764e-05, 5.635003177749206e-05]]}